Please don't bump your post unless it has fallen off the first page of the help board, its unnecessary and can end up making it look like you've already gotten an answer.
Text color is changed by using the font color code;
- Code: Select all
[color=00000]text here[/color]
The 6 zeros are the color hex code, each color has a 6-letter/number code associated with it. Usually you aren't going to know the color code you want, you can figure it out manually if you find a color you want, but CS also has some colors already in the system which you can use.
When you're making a post or edit your signature, you should see this at the top;

Clicking 'font color' will expand a section with some color choices. Just highlight the text you want to color, then click on the color you want it to be and the code will be inputted automatically for you.
Additionally, you may consider staying away from really bright colors, they can be difficult to read on the light post backgrounds.